Sense

1. a loud cry, shout, a battle-cry, at the battle-cry, of war, the roar, sound, the cry, as far as sound went, only in appearance
2. aid called for, succour

Examples

• καὶ εἰσ τὰσ βόασ ἔδραμεν Ἁβραὰμ καὶ ἔλαβεν ἁπαλὸν μοσχάριον καὶ καλὸν καὶ ἔδωκε τῷ παιδί, καὶ ἐτάχυνε τοῦ ποιῆσαι αὐτό. (Septuagint, Liber Genesis 18:7)
• ἐφοβήθη δὲ Ἰακὼβ σφόδρα, καὶ ἠπορεῖτο. καὶ διεῖλε τὸν λαὸν τὸν μεθ̓ ἑαυτοῦ καὶ τοὺσ βόασ καὶ τὰσ καμήλουσ καὶ τὰ πρόβατα εἰσ δύο παρεμβολάσ, (Septuagint, Liber Genesis 32:7)
• καμήλουσ θηλαζούσασ, καὶ τὰ παιδία αὐτῶν τριάκοντα, βόασ τεσσαράκοντα, ταύρουσ δέκα, ὄνουσ εἴκοσι καὶ πώλουσ δέκα. (Septuagint, Liber Genesis 32:15)
• καὶ τὰ πρόβατα αὐτῶν καὶ τοὺσ βόασ αὐτῶν καὶ τοὺσ ὄνουσ αὐτῶν, ὅσα τε ἦν ἐν τῇ πόλει καὶ ὅσα ἦν ἐν τῷ πεδίῳ, ἔλαβον. (Septuagint, Liber Genesis 34:28)
• ἄλλαι δὲ ἑπτὰ βόεσ ἀνέβαινον μετὰ ταύτασ ἐκ τοῦ ποταμοῦ αἰσχραὶ τῷ εἴδει καὶ λεπταὶ ταῖσ σαρξὶ καὶ ἐνέμοντο παρὰ τὰσ βόασ ἐπὶ τὸ χεῖλοσ τοῦ ποταμοῦ. (Septuagint, Liber Genesis 41:3)

Source: Henry George Liddell. Robert Scott. "A Greek-English Lexicon". revised and augmented throughout by. Sir Henry Stuart Jones.